Sodium Thiosulfate → Sulfur Dioxide

Reaktionsgleichung

[Mg:1].[S:2](=[O:6])(=S)([OH:4])[OH:3].[S:7]([O-])([O-:10])(=[O:9])=S.[Na+].[Na+].[Cl-].[Mg+2].[Cl-].S([O-])([O-])=[O:18].[Mg+2].[S]>O>[S:2]([O-:6])([O-:4])=[O:3].[Mg+2:1].[OH-:9].[Mg+2:1].[OH-:18].[S:7](=[O:10])=[O:9]

Komponenten

Edukt 5

HCID 24477Sodium Thiosulfate

HCID 3014583Magnesium sulfite

HCID 5360315Magnesium Chloride

HCID 5362487Sulfur

HCID 86597514Thiosulfuric acid magnesium

Produkt 3

HCID 1119Sulfur Dioxide

HCID 73981

Versuchsvorschrift

This JP publication also describes the formation of “thiosulfuric acid magnesium, MgS2O3.6H2O” by the reaction of sodium thiosulfate with Magnesium chloride and also from Magnesium Sulfite with sulfur and excess Mg(OH)2. Magnesium sulfite is first produced from magnesium hydroxide, water and sulfur dioxide. The solubility of Mg(OH) is 0.004% in water at 100° C. There is no mention of sulfite consistency or concentration of the product.